Apple says it only has ‘limited’ iPhone Duo units for in-store sales.

4-inch outer display and 7. The iPhone Duo launches on Friday, October 23rd, but online preorders quickly sold out, with some delivery estimates extending into next year.
“The pre-o …
Read the full story at The Verge. As analysised by MacRumors, customers in Japan, South Korea, and the United Arab Emirates can only get the device with a pickup reservation. 6-inch inner screen.